From unknown Sat Jun 14 03:48:35 2025 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.509 (Entity 5.509) Content-Type: text/plain; charset=utf-8 From: bug#45665 <45665@debbugs.gnu.org> To: bug#45665 <45665@debbugs.gnu.org> Subject: Status: IceCat canvas glitch (byte order issue?) Reply-To: bug#45665 <45665@debbugs.gnu.org> Date: Sat, 14 Jun 2025 10:48:35 +0000 retitle 45665 IceCat canvas glitch (byte order issue?) reassign 45665 guix submitter 45665 raingloom severity 45665 normal thanks From debbugs-submit-bounces@debbugs.gnu.org Mon Jan 04 18:13:41 2021 Received: (at submit) by debbugs.gnu.org; 4 Jan 2021 23:13:41 +0000 Received: from localhost ([127.0.0.1]:60570 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kwZ2j-0000mL-FE for submit@debbugs.gnu.org; Mon, 04 Jan 2021 18:13:41 -0500 Received: from lists.gnu.org ([209.51.188.17]:53814) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kwZ2g-0000mA-Jz for submit@debbugs.gnu.org; Mon, 04 Jan 2021 18:13:40 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:60658) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kwZ2g-00058l-F2 for bug-guix@gnu.org; Mon, 04 Jan 2021 18:13:38 -0500 Received: from mx1.riseup.net ([198.252.153.129]:58294) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kwZ2e-0004YZ-8B for bug-guix@gnu.org; Mon, 04 Jan 2021 18:13:38 -0500 Received: from fews1.riseup.net (unknown [10.0.1.83]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client CN "*.riseup.net", Issuer "Sectigo RSA Domain Validation Secure Server CA" (not verified)) by mx1.riseup.net (Postfix) with ESMTPS id 4D8rys0cbgzFfhw for ; Mon, 4 Jan 2021 15:13:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=riseup.net; s=squak; t=1609802005; bh=PMlomlKdE821kkvymx0wfNBO2JeUImMsq9iqBOEB0Gg=; h=Date:From:To:Subject:From; b=PK2vLSf6uM2ToyQK2IyuKUnTtD8HlqEonWddNzhAdR0L4VPO8/eR+QfAT/jcTzfEb Tpb08sHCjym1dAwhCcuJWl/GZ+119YFzl4NVBH5rk4iPD4GRGEIbkiQW7W3ZjqeWtL KgEav0/CjuDU1xfXzArGJ7DCh5g9UL2fV1rl4oog= X-Riseup-User-ID: 54FDEC249E2E9C8BC0837A1A423F628AA0C94690BA926C9D491057AA19FFEEA6 Received: from [127.0.0.1] (localhost [127.0.0.1]) by fews1.riseup.net (Postfix) with ESMTPSA id 4D8ryr2T9xz5vSN for ; Mon, 4 Jan 2021 15:13:24 -0800 (PST) Date: Tue, 5 Jan 2021 00:12:25 +0100 From: raingloom To: Guix Bugs Subject: IceCat canvas glitch (byte order issue?) Message-ID: <20210105001225.02ff6e84@riseup.net> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="MP_/szhZuoiB3awclrbz1XNd7c8" Received-SPF: pass client-ip=198.252.153.129; envelope-from=raingloom@riseup.net; helo=mx1.riseup.net X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.4 (-) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.4 (--) --MP_/szhZuoiB3awclrbz1XNd7c8 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline See attached image. Taken from: https://webassembly.sh/?run-command=wapm%20install%20caputomarcos/rust-example@0.1.0 Also saw a similar issue while trying to upload images to the merveilles.town Mastodon server. The image would have similar diagonal lines that were all of the same maybe 2-4 colors and each about 1 pixel wide. I haven't touched JavaScript and the canvas element in a looong time, so I might be wrong, but my suspicion is that rendering images to it is what causes the issue. --MP_/szhZuoiB3awclrbz1XNd7c8 Content-Type: image/png Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename=canvas.png iVBORw0KGgoAAAANSUhEUgAABYUAAAMGCAYAAACtQeuVAAAQ50lEQVR4nOzYwQkAIBDAsNt/aV3B hyDYZIK+OwMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 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